LTC3717EGN#TR Linear Technology, LTC3717EGN#TR Datasheet - Page 2

• Manufacturer Part Number: LTC3717EGN#TR
• Description: IC STEP-DWN CONTRLR SYNC 16-SSOP
• Manufacturer: Linear Technology

Specifications of LTC3717EGN#TR

• Applications: Controller, DDR, QDR
• Voltage - Input: 4 ~ 36 V
• Number Of Outputs: 1
• Voltage - Output: 2 ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LTC3717EGNTR

ABSOLUTE AXI U RATI GS
ELECTRICAL CHARACTERISTICS
LTC3717
(Note 1)
Input Supply Voltage (V
Boosted Topside Driver Supply Voltage
(BOOST) ................................................... 42V to – 0.3V
SW Voltage .................................................. 36V to – 5V
EXTV
V
I
TG, BG, INTV
TG, BG, INTV
Operating Ambient Temperature
Junction Temperature (Note 2) ............................ 125 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are T
SYMBOL
Main Control Loop
I
V
g
t
t
t
V
V
V
V
V
I
I
2
PGOOD Voltages ....................................... 7V to – 0.3V
TH
Q
ON
ON(MIN)
OFF(MIN)
RUN/SS(C)
RUN/SS(D)
m(EA)
FB
SENSE(MAX)
SENSE(MIN)
RUN/SS(ON)
RUN/SS(LE)
RUN/SS(LT)
V
V
V
V
REF
FB(LINEREG)
FB(LOADREG)
FB(OV)
FB(UV)
Range (Note 4) ................................... – 40 C to 85 C
, V
, V
CC
FB
RNG
, (BOOST – SW), RUN/SS,
Voltages...................................... 2.7V to – 0.3V
Voltages ...............(INTV
PARAMETER
Input DC Supply Current
Feedback Voltage Accuracy
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
Error Amplifier Transconductance
On-Time
Minimum On-Time
Minimum Off-Time
Maximum Current Sense Threshold (Source)
V
Minimum Current Sense Threshold (Sink)
V
Output Overvoltage Fault Threshold
Output Undervoltage Fault Threshold
RUN Pin Start Threshold
RUN Pin Latchoff Enable Threshold
RUN Pin Latchoff Threshold
Soft-Start Charge Current
Soft-Start Discharge Current
CC
CC
PGND
PGND
Normal
Shutdown Supply Current
, EXTV
, EXTV
W
– V
– V
SW
SW
CC
CC
CC
Peak Currents .................... 2A
RMS Currents .............. 50mA
, I
W W
ON
) .................36V to – 0.3V
CC
+ 0.3V) to – 0.3V
A
U
= 25 C. V
CONDITIONS
V
I
V
I
I
I
I
I
I
V
V
V
V
V
V
RUN/SS Pin Rising
RUN/SS Pin Falling
TH
TH
TH
ON
ON
ON
ON
RUN/SS
CC
RNG
RNG
RNG
RNG
RNG
RNG
The
= 1.2V (Note 3), V
= 4V to 36V, I
= 0.5V to 1.9V (Note 3)
= 1.2V (Note 3)
= 30 A
= 60 A
= 180 A
= 30 A
CC
= 1V, V
= 0V, V
= INTV
= 1V, V
= 0V, V
= INTV
= 15V unless otherwise noted.
= 0V
denotes specifications which apply over the full operating
CC
CC
FB
FB
FB
FB
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
, V
, V
= V
= V
= V
= V
TH
FB
FB
REF/2
REF/2
REF/2
REF/2
= V
= V
= 1.2V (Note 3)
RUN/SS
PGOOD
REF
SGND
V
V
REF/2
REF/2
RNG
V
– 50mV
– 50mV
+ 50mV
+ 50mV
I
REF
I
ON
TH
FB
= 2.4V
T
JMAX
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
– 50mV
+ 50mV
= 125 C,
GN PACKAGE
TOP VIEW
JA
= 130 C/ W
16
15
14
13
12
11
10
9
BOOST
TG
SW
PGND
BG
INTV
V
EXTV
– 0.65
CC
– 140
– 200
– 0.5
0.93
MIN
– 97
186
108
148
0.8
0.8
95
76
8
CC
CC
U
– 0.05
0.002
1000
– 165
– 115
– 235
– 1.2
1.13
TYP
– 25
233
115
300
135
185
1.5
3.5
1.8
15
50
95
10
4
ORDER PART
LTC3717EGN
W
MARKING
GN PART
NUMBER
3717
– 190
– 133
– 270
MAX
2000
0.65
– 0.3
1.33
280
135
100
400
162
114
222
4.5
4.2
30
–3
12
2
3
sn3717 3717fs
UNITS
U
%/V
mS
mV
mV
mV
mV
mV
mV
ns
ns
ns
ns
%
%
%
%
A
A
V
V
V
A
A